I have bought games on GOG and would like to copy them to a CD (only have DVD read) but not enough space on one CD. What file names go on one CD and connect to the second CD ? The one game is Post Mortem.

The Setup file for Post Mortem is about 940 MB in size, which is too large to fit on a CDR. You can try using a File Splitter utility to split it in two so it will fit on 2 CDR's.

But since most games from GOG have individual files that are too large for a CDR, why don't you buy a DVD writer? You can get one that plugs into a USB port and you won't even have to take your computer apart to install it. Maybe one of these, which are about $30 each.

Generally you can. It is simply a matter of pulling out the old drive and inserting the new. More often than not you don't have to do any set up. Windows Xp as a rule will recognize it and install basic drivers at startup. You will need to know the type of drive your motherboard is geared for. The most common type including since the advent of XP is the SATA drive. They run as cheap as $20 and will write and play both cd and dvd.

It is plug an play. Often you can simply unplug the wires from the drive in your machine and attach them to the new drive. The last one I bought is a light scribe compatible it was $21 a year ago still using it.